Next Generation Extractants for Cesium Separation from High-Level Waste: From Fundamental Concepts to Site Implementation
Next Generation Extractants for Cesium Separation from High-Level Waste: From Fundamental Concepts to Site Implementation
复制标题
DOI：
10.2172/834470
复制
发表时间：
2001-08
影响因子：
7.4
通讯作者：
B. Moyer;P. Bonnesen;J. Bryan;N. Engle;T. Levitskaia;R. Sachleben;R. Bartsch;V. Talanov;H. Gibson;Jason W. Jones
中科院分区：
文献类型：
--
作者：
B. Moyer;P. Bonnesen;J. Bryan;N. Engle;T. Levitskaia;R. Sachleben;R. Bartsch;V. Talanov;H. Gibson;Jason W. Jones
该项目旨在通过铯选择性杯冠萃取剂从高放废物中分离铯的基本理解和重大改进。特别感兴趣的体系涉及含有杯[4]芳烃-冠-6家族的特定成员、醇溶剂化剂和烷基胺的新型溶剂萃取体系。所解决的问题涉及铯结合强度、萃取选择性、铯剥离和萃取剂溶解度。在这方面，增强的属性将特别有利于由美国能源部环境管理办公室资助的应用项目，以清理萨凡纳河遗址（SRS），汉福德和爱达荷州国家环境和工程实验室等网站。最直接的受益者将是SRS盐处理项目，该项目最近确定了采用杯冠醚的碱侧溶剂萃取（CSSX）工艺，作为从SRS高放射性储罐废物中去除铯的首选技术。
This project seeks a fundamental understanding and major improvement in cesium separation from high-level waste by cesium-selective calixcrown extractants. Systems of particular interest involve novel solvent-extraction systems containing specific members of the calix[4]arene-crown-6 family, alcohol solvating agents, and alkylamines. Questions being addressed bear upon cesium binding strength, extraction selectivity, cesium stripping, and extractant solubility. Enhanced properties in this regard will specifically benefit applied projects funded by the USDOE Office of Environmental Management to clean up sites such as the Savannah River Site (SRS), Hanford, and the Idaho National Environmental and Engineering Laboratory. The most direct beneficiary will be the SRS Salt Processing Project, which has recently identified the Caustic-Side Solvent Extraction (CSSX) process employing a calixcrown as its preferred technology for cesium removal from SRS high-level tank waste.